public class TestVar03{
	public static void main(String[] args){
		int num1 = 10;
		int num2 = 20;
		num1 = num2;
		num2 = num2 + 10;
		num1 = num2 - 10;
		num2 = num1;
		
		System.out.println("num1=" + num1);
		System.out.println("num2=" + num2);
	}
}